Cgs synth

Blue LEDs are subject to failure from static, though this probably wasn't
the case this time. More likely I'd say it was a thermal issue causing a
break in the internal LED wiring.

Ken

>This is sort of off topic, but may be of interest. I had to replace the
>power LED in my computer. The original was bright blue. Its failure
>mode was that for several weeks it was intermittent and would flicker,
>sometimes on, sometimes off. Then it died for good. I checked out the
>wiring and concluded it must be the LED, which was mounted on a small
>board fastened to the front panel with two machine screws (in a nice
>computer case). It was easy to remove the board and replace the LED
>with a red one from my parts bin.
>
>Now, what do you think caused the blue LED to fail? Could it be a
>current overload? The new red one looks to be normal brightness (much
>less than the blue had been). I was wondering if the resistor, which I
>didn't measure, was chosen for a normal LED and when mated to the blue
>resulted in too much current? LEDs normally last almost forever.
>
>Richard Brewster
>http://www.pugix.com
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>The CGS Modular Synth home page: http://www.cgs.synth.net/
>
>Yahoo! Groups Links
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_______________________________________________________________________
Ken Stone sasami@... or sasami@...
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>